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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include <stdio.h>
#include <strings.h>
#include <unistd.h>
#include <sys/time.h>
#include <LongBow/runtime.h>
#include <parc/algol/parc_Memory.h>
#include <ccnx/transport/common/transport.h>
#include <ccnx/transport/common/transport_private.h>
#include <ccnx/transport/common/transport_Message.h>
#define DEBUG_OUTPUT 0
struct transport_message {
CCNxTlvDictionary *dictionary;
TransportMessage_Free *freefunc;
void *info;
struct timeval creationTime;
};
static size_t _transport_messages_created = 0;
static size_t _transport_messages_destroyed = 0;
static void
_transportMessage_GetTimeOfDay(struct timeval *outputTime)
{
#ifdef DEBUG
// if in debug mode, time messages
gettimeofday(outputTime, NULL);
#else
*outputTime = (struct timeval) { 0, 0 };
#endif
}
TransportMessage *
transportMessage_CreateFromDictionary(CCNxTlvDictionary *dictionary)
{
assertNotNull(dictionary, "Cannot create TransportMessage from NULL Dictionary");
if (dictionary == NULL) {
return NULL;
}
TransportMessage *tm = parcMemory_AllocateAndClear(sizeof(TransportMessage));
if (tm != NULL) {
tm->dictionary = ccnxTlvDictionary_Acquire(dictionary);
_transportMessage_GetTimeOfDay(&tm->creationTime);
_transport_messages_created++;
if (DEBUG_OUTPUT) {
printf("%-35s allocs %zu destroys %zu pointer %p dict %p\n",
__func__,
_transport_messages_created,
_transport_messages_destroyed,
(void *) tm,
(void *) dictionary);
}
}
return tm;
}
CCNxTlvDictionary *
transportMessage_GetDictionary(TransportMessage *tm)
{
assertNotNull(tm, "TransportMessage_GetWireMessage called on NULL transport message");
return tm->dictionary;
}
bool
transportMessage_isValid(const TransportMessage *message)
{
bool result = false;
if (message != NULL) {
result = true;
}
return result;
}
void
transportMessage_AssertValid(const TransportMessage *message)
{
assertTrue(transportMessage_isValid(message), "TransportMessage @ %p is invalid.", (void *) message);
}
/*
* Frees the TransportMessage wrapper, but user is responsible
* for destroying the inner pieces.
*/
static void
_transportMessage_Destroy(TransportMessage **msgPtr)
{
assertNotNull(msgPtr, "TransportMessage_Destroy called on NULL transport message pointer");
if (msgPtr != NULL) {
TransportMessage *msg = *msgPtr;
transportMessage_OptionalAssertValid(msg);
_transport_messages_destroyed++;
if (DEBUG_OUTPUT) {
printf("%-35s allocs %zu destroys %zu pointer %p\n",
__func__,
_transport_messages_created,
_transport_messages_destroyed,
(void *) msg);
}
if (msg->freefunc != NULL) {
msg->freefunc(&msg->info);
}
parcMemory_Deallocate((void **) &msg);
*msgPtr = NULL;
}
}
void
transportMessage_Destroy(TransportMessage **tmPtr)
{
TransportMessage *tm = *tmPtr;
assertNotNull(tmPtr, "called with NULL transport message double pointer");
assertNotNull(tm, "called with NULL transport message dereference");
if (tm->dictionary != NULL) {
ccnxTlvDictionary_Release(&tm->dictionary);
tm->dictionary = NULL;
}
_transportMessage_Destroy(tmPtr);
}
/*
* Add some stack payload to a transport message. Will not be freed.
*/
void
transportMessage_SetInfo(TransportMessage *tm, void *info, TransportMessage_Free *freefunc)
{
assertNotNull(tm, "%s called with NULL transport message", __func__);
tm->info = info;
tm->freefunc = freefunc;
}
void *
transportMessage_GetInfo(const TransportMessage *tm)
{
assertNotNull(tm, "%s called with NULL transport message", __func__);
return tm->info;
}
struct timeval
transportMessage_GetDelay(const TransportMessage *tm)
{
struct timeval now;
_transportMessage_GetTimeOfDay(&now);
timersub(&now, &tm->creationTime, &now);
return now;
}
bool
transportMessage_IsControl(const TransportMessage *tm)
{
return ccnxTlvDictionary_IsControl(tm->dictionary);
}
bool
transportMessage_IsInterest(const TransportMessage *tm)
{
return ccnxTlvDictionary_IsInterest(tm->dictionary);
}
bool
transportMessage_IsContentObject(const TransportMessage *tm)
{
return ccnxTlvDictionary_IsContentObject(tm->dictionary);
}
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